干旱区生态环境知识资源中心(Arid): The response of microzooplankton (tintinnid) community to salinity related environmental changes in a hypersaline marine system in the northwestern Arabian Gulf

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DOI	10.1016/j.dsr2.2019.02.005
	The response of microzooplankton (tintinnid) community to salinity related environmental changes in a hypersaline marine system in the northwestern Arabian Gulf
	Al-Yamani, Faiza; Madhusoodhanan, Rakhesh; Skryabin, Valeriye; Al -Said, Turki
通讯作者	Madhusoodhanan, Rakhesh
来源期刊	DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
ISSN	0967-0645
EISSN	1879-0100
出版年	2019
卷号	166 页码:151-170
英文摘要	Construction of large dams often wreaks havoc on coastal marine systems through hydro-biological alterations. In this study, we have investigated how salinity changes in the northwestern Arabian Gulf (NWAG) due to water regulation activities upstream of the Shatt Al-Arab River system (SAR) has influenced the hydrography and microzooplankton (tintinnid ciliates) community in the semi-arid shallow marine environment off Kuwait. Microzooplankton and water samples for environmental variables were obtained between 2004 and 2008 across several coastal and offshore locations (n = 436). Microzooplankton samples showed the presence of sixty-two species of tintinnids belonging to sixteen genera and ten families. Hydrography data revealed a continuous decrease in salinity in the NWAG from 2004 until 2006 (mean salinity: 37.3; CV: 0.09), and an increase thereafter (mean salinity in 2007-2008: 39.9, CV: 0.08). The minimum increase was reported in the offshore waters (0.50), and maximum in the northern areas upstream of Boubiyan Island (similar to 6). These changes associated with shifts in freshwater discharge from the SAR have adversely affected the hydrographical properties and phytoplankton stock post-2006. The seasonality (and heterogeneity) in hydrography were more pronounced in the low saline period of 2004-2006 than 2007-2008. As evident from multivariate statistical analyses, these changes have generated undesirable effects on the structural property indicators (abundance, biomass, and diversity), and distribution patterns of tintinnids in 2007-2008. Although agglutinated loricates constituted the most dominant group in the 2004-2008 period, the hydrographical changes post-2006 increased the relative abundance of hyalinated loricates. The biotic-abiotic interactions and distance-based linear models (DistLM) revealed that among the measured environmental variables, the cumulative effect of salinity, water temperature, dissolved inorganic nitrogen, silicic acid, and Chl a played a key role regulating microzooplankton community in 2004-2006 (p = 0.633, P: 0.1%), while a combination of factors silicic acid, salinity, water temperature, and Chl a (p= 0.422, P: 0.1%) were more important in 2007-2008. All together, species distribution patterns and complementary evidence from biotic-abiotic interactions suggest that the salinity increase post-2006 caused a significant shift in tintinnid community properties with possible repercussions on the functioning of pelagic food-web in the coastal and offshore waters of the NWAG. The present study thus offers prima facie evidence of changes in microbial grazer communities caused by anthropogenic alterations of river discharge into the Arabian Gulf in general and NWAG in particular.
英文关键词	Zooplankton, Anthropogenic impacts Salinity changes Multivariate analyses Shatt Al-Arab Kuwait Bay
类型	Article
语种	英语
国家	Kuwait
收录类别	SCI-E
WOS记录号	WOS:000483908900014
WOS关键词	BENTHIC CILIATE COMMUNITIES ; SEASONAL-VARIATIONS ; SPECIES COMPOSITION ; FUNCTIONAL DIVERSITY ; TAXONOMIC COMPOSITION ; PRODUCTION-RATES ; MANGROVE WATERS ; SOUTHEAST COAST ; KUWAIT BAY ; ABUNDANCE
WOS类目	Oceanography
WOS研究方向	Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215027
作者单位	Kuwait Inst Sci Res, Environm & Life Sci Res Ctr, Ecosyst Based Management Marine Resources Program, Salmiya 22017, Kuwait
推荐引用方式 GB/T 7714	Al-Yamani, Faiza,Madhusoodhanan, Rakhesh,Skryabin, Valeriye,et al. The response of microzooplankton (tintinnid) community to salinity related environmental changes in a hypersaline marine system in the northwestern Arabian Gulf[J],2019,166:151-170.
APA	Al-Yamani, Faiza,Madhusoodhanan, Rakhesh,Skryabin, Valeriye,&Al -Said, Turki.(2019).The response of microzooplankton (tintinnid) community to salinity related environmental changes in a hypersaline marine system in the northwestern Arabian Gulf.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,166,151-170.
MLA	Al-Yamani, Faiza,et al."The response of microzooplankton (tintinnid) community to salinity related environmental changes in a hypersaline marine system in the northwestern Arabian Gulf".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 166(2019):151-170.